Mercurial > dive4elements > river

annotate backend/src/main/java/org/dive4elements/river/backend/SedDBSessionHolder.java @ 6955:94cb1845c667

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(issue1452) Coalesce to zero to avoid NaN arithmetic.
author Andre Heinecke <aheinecke@intevation.de>
date Fri, 30 Aug 2013 15:45:14 +0200
parents 4c3ccf2b0304
children fe7e9da6312a
rev   line source
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Sascha L. Teichmann <teichmann@intevation.de>
parents: 5838
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
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2 * Software engineering by Intevation GmbH
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3 *
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4 * This file is Free Software under the GNU AGPL (>=v3)
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the
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6 * documentation coming with Dive4Elements River for details.
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7 */
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8
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9 package org.dive4elements.river.backend;
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11 import org.apache.log4j.Logger;
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12
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13 import org.hibernate.Session;
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14 import org.hibernate.SessionFactory;
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15
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16 public class SedDBSessionHolder
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17 {
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18 private static Logger log =
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19 Logger.getLogger(SedDBSessionHolder.class);
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20
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21 public static final ThreadLocal<Session> HOLDER =
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22 new ThreadLocal<Session>() {
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23 @Override
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24 protected Session initialValue() {
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25 return create();
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26 }
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27 };
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29 private SedDBSessionHolder() {
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30 }
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31
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32 public synchronized static Session create() {
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33 log.debug("create");
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34 SessionFactory sessionFactory =
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35 SessionFactoryProvider.getSedDBSessionFactory();
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36 return sessionFactory.openSession();
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37 }
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39 public static Session acquire() {
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40 log.debug("acquire");
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41 Session session = create();
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42 HOLDER.set(session);
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43 return session;
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44 }
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46 public static void release() {
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47 log.debug("release");
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48 HOLDER.remove();
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49 }
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50 }
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51 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org